PBL 3764A/4, /6
VTRO (VPeak
)
Figure 18. Overload level, VTRO as a
function of VMargin
.
Max. VMargin = maximum
VBat - VTRdc required for distortion
free transmission of a given VTRO
.
2
1
Typ.
Max.
0
5
6
7
8
VMargin (V)
Figure 19. Loop resistance at IL = 18mA
as a function of VMargin at open loop.
RL (ohm) at IL = 18mA
VBat=-48V
C
A
B
D
CurveA: IConst=20mA
CurveB: IConst=25mA
CurveC: IConst=30mA
CurveD: IConst=35mA
2200
2100
2000
1900
4
5
6
7
8
9
VMargin (V)
Figure 20. Power Dissipation.
P (W)
3
CurveA: Conventional2X400Ωresistivefeed
CurveB: PBL3764A/4,-48V,30mA
CurveC: PBL3764A/4,-28V,30mA
A
2
B
C
1
0
500
1000
1500
2000
0
RL
Loop resistance (ohm)
14
ERICSSON [ ERICSSON ]
